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Spotlight on SAP ASE 2.11 - User Guide

Spotlight on SAP ASE
Background Information Desktop Features Connect to SAP ASE Spotlight® on SAP ASE Drilldowns Spotlight® on SAP ASE Alarms Glossary
Spotlight Basics
Spotlight Connections Monitor Spotlight Connections Alarms Charts, Grids And Home Page Components View | Options Troubleshooting
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Index Hit Ratio

The index hit ratio for a buffer pool, shown as a percentage. This value is the ratio of physical index reads to logical index read requests. It is a measure of how much time is spent reading index pages from the buffer pool versus reading them from disk. A higher percentage means more data is being read from the buffer pool. A lower percentage means more data is being read from disk, which in turn means more disk I/O and a greater impact on performance.

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